She always flirts really hard with me in a group setting. Saying VERY suggestive things towards me specifically every time we hang out as a group. Then when I try to talk to her alone she flirts a little bit but then shuts it down every time (happened twice now...first time I thought she was just playing hard to get). Does she just want attention? How do you deal with a girl like this? Withdrawal attention? Or should I just ignore it when she shuts it down and double-down to blow through her frame?